From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1764410AbYEGSL1 (ORCPT ); Wed, 7 May 2008 14:11:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755105AbYEGSLR (ORCPT ); Wed, 7 May 2008 14:11:17 -0400 Received: from mail.gmx.net ([213.165.64.20]:47526 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1755032AbYEGSLP (ORCPT ); Wed, 7 May 2008 14:11:15 -0400 X-Authenticated: #44953887 X-Provags-ID: V01U2FsdGVkX18O9kJBVBwOoqHpdsObyXXbL9GmHMdvVK0iBcUNqG jZjmQtDCLkL1Rn Subject: Re: [BUG]:WARNING: at arch/x86/kernel/rtc.c:122 in 2.6.26-rc1 From: Mirco Tischler To: Andi Kleen Cc: Ingo Molnar , Thomas Gleixner , lkml In-Reply-To: <1210183536.28099.10.camel@mtlp.tischlernetz> References: <1210183536.28099.10.camel@mtlp.tischlernetz> Content-Type: text/plain Date: Wed, 07 May 2008 20:11:11 +0200 Message-Id: <1210183871.28099.12.camel@mtlp.tischlernetz> Mime-Version: 1.0 X-Mailer: Evolution 2.22.1.1 Content-Transfer-Encoding: 7bit X-Y-GMX-Trusted: 0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mi, 2008-05-07 at 20:05 +0200, Mirco Tischler wrote: > Hello > I've triggered this warning in 2.6.26-rc1-git from 6th of may: > ... > [11677.490019] CPU1 is down > [11677.490149] Extended CMOS year: 2000 > [11677.490149] x86 PAT enabled: cpu 0, old 0x7040600070406, new > 0x7010600070106 > [11677.490747] Back to C! > [11677.490952] microcode: CPU0 updated from revision 0x92 to 0x92, date > = 03132007 > [11677.491065] ------------[ cut here ]------------ > [11677.491065] WARNING: at arch/x86/kernel/rtc.c:122 mach_get_cmos_time > +0x9e/0x14e() > [11677.491065] Modules linked in: i915 microcode cpufreq_userspace > cpufreq_conservative cpufreq_powersave sbs sbshc wmi aes_x86_64 dm_crypt > rtc_cmos rtc_core rtc_lib kvm_intel kvm coretemp hwmon sbp2 > snd_hda_intel snd_pcm snd_page_alloc snd_hwdep pata_acpi snd_seq > firewire_ohci firewire_core tifm_7xx1 crc_itu_t snd_timer snd_seq_device > tpm_infineon tpm tpm_bios psmouse tifm_core ide_pci_generic snd > soundcore intel_agp ohci1394 ieee1394 ata_generic ehci_hcd uhci_hcd fan > fuse usbcore [last unloaded: iwl4965] > [11677.491065] Pid: 30643, comm: pm-suspend Not tainted > 2.6.26-rc1-experimental #72 > [11677.491065] > [11677.491065] Call Trace: > [11677.491065] [] warn_on_slowpath+0x51/0x8c > [11677.491065] [] try_to_wake_up+0x1d8/0x1e9 > [11677.491065] [] do_machine_check+0xa4/0x3d3 > [11677.491065] [] __wake_up+0x38/0x4e > [11677.491065] [] mach_get_cmos_time+0x9e/0x14e > [11677.491065] [] read_persistent_clock+0x1b/0x35 > [11677.491065] [] timekeeping_resume+0xb/0x120 > [11677.491065] [] __sysdev_resume+0x16/0x43 > [11677.491065] [] sysdev_resume+0x26/0x61 > [11677.491065] [] device_power_up+0x9/0xf > [11677.491065] [] suspend_devices_and_enter > +0xbc/0x105 > [11677.491065] [] enter_state+0xe3/0x131 > [11677.491065] [] state_store+0xb4/0xd5 > [11677.491065] [] sysfs_write_file+0xd0/0x107 > [11677.491065] [] vfs_write+0xad/0x136 > [11677.491065] [] sys_write+0x45/0x6e > [11677.491065] [] system_call_after_swapgs+0x7b/0x80 > [11677.491065] > [11677.491065] ---[ end trace cce3eb8653db51b7 ]--- > [11677.491065] Extended CMOS year: 2000 > [11677.491232] Enabling non-boot CPUs ... > ... > > I wasn't able to reproduce the warning yet, but because the commit > message introducing the WARN_ON says: > > [ tglx@linutronix.de: changed to WARN_ON - we want to know that! > > If no one reports it we can remove the complete if (RTC_ALWAYS_BCD) > > magic, which has RTC_ALWAYS_BCD defined to 1 since Linux 1.0 ... ] > I'm reporting it anyway now. > > Thanks > > Mirco Resend cause Andi's email has changed